EP 1440805 A4 20050817 - AN INK CARTRIDGE FOR A PRINTER
Title (en)
AN INK CARTRIDGE FOR A PRINTER
Title (de)
TINTENPATRONE FÜR EINEN DRUCKER
Title (fr)
CARTOUCHE D'ENCRE POUR IMPRIMANTE
Publication
Application
Priority
- CN 0200723 W 20021015
- CN 01265494 U 20011031
- CN 01142340 A 20011211
- CN 02115259 A 20020523
Abstract (en)
[origin: WO03037634A1] The ink cartridge comprises a cartridge body with an ink chamber. On one side of the cartridge body is provided an ink supply port, and an air channel is positioned on the opposite side. The ink chamber is composed of a main chamber and a communicating sub-chamber, an ink-out inspection prism being provided close to the communicating portion. A check valve through which the sub-chamber is communicated with the ink supply port is provided sideways between the side walls adjacent to the ink supply port. In this invention, the nominal volume of each ink cartridge is increased, and there is no such problem that a certain amount of ink continues to be fed after the ink-out indicative signal being sent out in case of no porous material. Further, the technical solution of the sideways-provided check valve improves the manufacturability and the ink supply stability.
[origin: WO03037634A1] The ink cartridge comprises a cartridge body with an ink chamber. On one side of the cartridge body is provided an ink supply port, and an air channel is positioned on the opposite side. The ink chamber is composed of a main chamber and a communicating sub−chamber, an ink−out inspection prism being provided close to the communicating portion. A check valve through which the sub−chamber is communicated with the ink supply port is provided sideways between the side walls adjacent to the ink supply port. In this invention, the nominal volume of each ink cartridge is increased, and there is no such problem that a certain amount of ink continues to be fed after the ink−out indicative signal being sent out in case of no porous material. Further, the technical solution of the sideways−provided check valve improves the manufacturability and the ink supply stability.
IPC 1-7
IPC 8 full level
B41J 2/175 (2006.01)
CPC (source: EP US)
B41J 2/17513 (2013.01 - EP US); B41J 2/17523 (2013.01 - EP US); B41J 2/17553 (2013.01 - EP US)
Citation (search report)
- [A] EP 0781659 A2 19970702 - CANON KK [JP]
- [A] EP 0803364 A2 19971029 - CANON KK [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27)
- See also references of WO 03037634A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1440805 A1 20040728; EP 1440805 A4 20050817; EP 1440805 B1 20061213; AT E348006 T1 20070115; DE 60216800 D1 20070125; DE 60216800 T2 20071004; ES 2275916 T3 20070616; JP 2005506920 A 20050310; US 2005068387 A1 20050331; US 7246891 B2 20070724; WO 03037634 A1 20030508; WO 03037634 A8 20040617
DOCDB simple family (application)
EP 02774262 A 20021015; AT 02774262 T 20021015; CN 0200723 W 20021015; DE 60216800 T 20021015; ES 02774262 T 20021015; JP 2003539947 A 20021015; US 49399204 A 20041025